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A kind of anti-ablation aluminum alloy cartridge and its preparation method

An aluminum alloy and cartridge technology, which is applied in the direction of ammunition, cartridge ammunition, offensive equipment, etc., to achieve the effect of simple plating process, strong corrosion resistance and smooth surface

Active Publication Date: 2019-04-19
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the gunpowder is easy to ablate the aluminum alloy cartridge during firing and seriously affects the use of the aluminum alloy cartridge, and for the first time proposes an aluminum alloy cartridge with Ni plating, which has a high safety factor and strong ablation resistance and its preparation method

Method used

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  • A kind of anti-ablation aluminum alloy cartridge and its preparation method
  • A kind of anti-ablation aluminum alloy cartridge and its preparation method
  • A kind of anti-ablation aluminum alloy cartridge and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] Liquid A: 300g of nickel sulfate and 50g of ammonium fluoride per liter;

[0083] Solution B: Each liter contains 260g of sodium hypophosphite, 210g of citric acid monohydrate, 200g of ammonium fluoride, 0.02g of thiourea, and 0.15g of sodium lauryl sulfate.

[0084] According to volume percentage, take 10% of A solution, 10% of B solution and 80% of deionized water, mix them uniformly, adjust the pH to 6.8-7 with ammonia water, and form an electroless plating solution. The components of the plating solution are nickel sulfate 30g / L, fluorine Ammonium chloride 5g / L, sodium hypophosphite 26g / L, citric acid monohydrate 21g / L, ammonium fluoride 2g / L, thiourea 0.002g / L, sodium lauryl sulfate 0.015g / L.

[0085] Pretreatment of aluminum alloy matrix cartridges. The aluminum alloy matrix cartridge is a cartridge machined from 7075 aluminum alloy.

[0086] 1) Degreasing: place the parts to be plated in acetone at room temperature for 10 minutes, take them out and wash them wi...

Embodiment 2

[0090] Liquid B: containing 250g of sodium hypophosphite, 200g of citric acid monohydrate, 200g of ammonium fluoride, 0.02g of thiourea, and 0.15g of sodium lauryl sulfate per liter;

[0091] Liquid D: 320g of nickel sulfate and 0.02g of thiourea per liter;

[0092] The post-plating solution of embodiment 1 is filtered, and the plating tank is cleaned; then by volume percentage, the above-mentioned filtrate is supplemented, and the first time is supplemented with 30ml B liquid and 25ml D liquid per liter of plating solution, and stirring makes the plating tank The components of the plating solution are mixed evenly, and the pH is adjusted to 6.8-7 with ammonia water to form a new plating solution; the new plating solution is heated to 85°C and stabilized at this temperature, and then the aluminum alloy drug pretreated according to Example 1 is Place the cylinder in the plating solution for electroless plating, take out the nickel-plated parts after 60 minutes of plating, wash ...

Embodiment 3

[0095] Liquid C: 480g of nickel sulfate and 100g of citric acid monohydrate per liter;

[0096] Carry out plating and replenishment by the method for embodiment 2, replenish twice and after carrying out electroless plating, after plating solution and plating tank are processed, the solution after plating continues to replenish for the third time, every liter of plating solution adds 20ml of liquid C, 25ml of liquid D, stir to make the components of the plating solution in the plating tank mix evenly, adjust the pH to 6.8-7.0 with ammonia water, and obtain a new plating solution; heat the new plating solution to 85 ° C, and then process it according to Example 1 The aluminum alloy cartridge is added to the plating solution for chemical plating, and after 60 minutes of plating, the nickel-plated parts are taken out, washed with water, and dried. The plating solution can be recycled. On the basis of the third addition, the plating solution can be added continuously. Each liter of...

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Abstract

The invention relates to an anti-ablation aluminum alloy cartridge and a preparation method thereof and belongs to the technical field of cartridge design and preparation. According to the anti-ablation aluminum alloy cartridge and the preparation method thereof, the situation that a Ni-P alloy layer is prepared on the surface of the aluminum alloy cartridge through chemical plating, and thus the anti-ablation capacity of the aluminum alloy cartridge is improved is firstly attempted. The designed and prepared aluminum alloy cartridge comprises an aluminum alloy substrate and the Ni-P alloy plated layer which is uniformly attached to the aluminum alloy substrate. The cartridge has the characteristics of being small in mass, excellent in conductive property and capable of resisting ablation and corrosion. The anti-ablation aluminum alloy cartridge and the preparation method thereof provide a complete idea for development of new generation ammunition.

Description

technical field [0001] The invention relates to an anti-ablation aluminum alloy cartridge and a preparation method thereof, belonging to the technical field of cartridge design and preparation. Background technique [0002] Lightweight ammunition will greatly increase the amount of ammunition carried by soldiers and launch platforms, as well as the persistence and effectiveness of firepower. The weight reduction of ammunition comes first in the cartridge, since the cartridge accounts for almost half of the weight of the bullet. The main goal of lightweight ammunition is to reduce the mass of projectiles and cartridges by using lightweight materials, new processes, and new structures. At present, the cartridges are mostly made of copper and steel materials, and they are relatively heavy. The use of lightweight materials can effectively reduce weight. Aluminum alloy has the advantages of light weight, high strength, and easy processing and forming. It is the main research ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F42B5/28F42B33/14C23C18/18C23C18/36
CPCC23C18/1841C23C18/36F42B5/28F42B33/14
Inventor 石西昌李志伟陈亚徐徽杨喜云
Owner CENT SOUTH UNIV
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